heatly



(No Model.) 2 Sheets-Sheet. 1. I. s. HEATLY. BREAKDOWN GUN.

NTOR

Patented Jan. 3, 1893.

L vv WITNESSES:

Maw-a2? BY HM ATTORNEY UNITED STATES PATENT OFFIC ISAIAH s. IIEATLY, orJnitsEY oI'rY, NEW JERSEY, ASIGNOR TO ISAIAII'S.

lIEATLY AND IIENRY L'. PRAET, JR., or SAME PLACE.

BREAKDOWN GUN.

SPECIFICATION forming part of Letters1Patent No. 489,191, dated January3, 1898. Application filed May 27, 1892. Serial No. 434,554. (No model.)

To all whom it may concern: A arm, ashere shown, bearing upon a dog B,Be it known that I, ISAIAH S. HEATLY, of near the fulcrum point, and theupper arm Jersey City, county of Hudson, and State of of each springengages with a link b which New Jersey, have invented a certain new andat the other end is pivoted to an arm'b of the 5 useful Improvement inFirearms, of which the hammers. following is a specification. I will nowdescribe the meansfor cocking Thisinvention-relatestolocksanddisehargthehammers. C designatesa cocking sear 4 iug mechanism employed in socalled hampivoted at its lower end within the frame A merless guns, andalso to certain other parts between the hammers B. It has a rearwardly mof the gun mechanism as will hereinafter apextending portion 0 on eachside of which is pear. journaled 'an antifrictio'n roller 0' adapted toThe invention consists in the construction bear upon the arms I) of thehammers. The and novel arrangement of parts as hereinafter upper end ofthe dog 0 has a lug c engaging set forth. in a hole, in the forward endof a link 0', r 5 In the accompanying drawings, Figure 1 is which, atthe opposite end, is pivotally coua vertical longitudinal section of agun mechnected toa slide plate 0 This slide plate is anism embodying myimprovement. Fig. 2 mo'vably secured to the inner face of thetop is asimilar view but showing the parts in a plate a'in any desired manner,and is curved different position. Fig.3isatop or plan viewlongitudinally to conform to the curve of the 2o with'a portion of thetop plate removed and plate a. Atits forward end the plate isslotcertain parts omitted. Fig. 4 is a'pl'an with ted, as at c and oneside wall of this slot is the top plate and barrel removed. Fig. 5 isprovided with rack teeth 0, with which teeth a bottom plan view. of a.pinion C eng'age. The shaft of the pin- Referring by letter to thedrawings A desion '0 extends upward through and has its v 25 ignates aframe designed to be secured to a bearing in a hole inthe top plate aand a gun stock in the usual manner, and consistcocking lever C issecured bya pin to the uping essentially of the side plates a, the topper end of the pinion shaft. It will be obplate a and the bottom plate aA vertical served that a'segment only of the pinion 0 wall a of theframeA forms the breech plate is used to operate the plate 0 but Iprefer to 30 for the barrels A. This breech plate a. is provide thepinion with teeth throughout its 4 provided with holes a, through whichthe circumference, so that should a tooth be acciends of the centralfire hammers B passto exdentallybroken the pinion may be shifted toplode the charge. At its lower portion the bring an operative set ofteeth into position frame A is provided with a forward extension bymerely removing the lever C or shifting 5 A to which the barrels arehinged as hereit rotarily in the pinion shaft. Of course in inafterdescribed. Each hammer B is pivdoing this, it will be necessary toremove the oted on a pin or rod b extending from, one holding pin anddrill a new hole through the side wall to the other of the boxing A. Asshaft for its passage. shown, these hammers at their lower endsTheoperation ot'cocking the hammers may 0 have tubular blocks 11'through which the pin be described as follows:' The normal position orrod 1) passes,-and the inner or adjacent ends of the cooking lever C isin line with the lonof the blocks are provided with short arms gitudinalcenter of the gun. To cook the ham- 1) extending at substantially rightangles mers the leverC is moved laterally, as shown to the blocks. Eachblock b is provided at in Fig. 3, to rotate the pinion C which slides 55 one side with a notch b into which the end the plate 0 rearward to theposition shown of a pivoted sear 13' engages to hold the hamin Fig. 2.This movement of the plate (3 opmer in a cooked position. The sears Bhave crates, through the link C, to rock the cooka pivotal connection,as at b, with the frame ing dog 0, and turn the hammers on their a A,and the longer arm of each sear engages pivots until the ends of thescars B'catch into too 50 with a pivoted triggerB Springs B of the thenotches Z1 of the hammers. The cooking usual construction, have the endof the lower of the hammers compresses the springs B so that they, willoperate to throw the hammers forward to dischargothc cartridge. Theparts as so far described as to the cocking of the hammers are in theposition shown in Fig. :3; The lever 0' is now returned to its normalposition and will return the parts t, C, ,to the position shown in-l ig.1, leaving the hasntners'cocked. The hammers cannot" now be released,byzpulling the triggers B because the operation of the parts asdescribed to cock the hammers, also sets a safety mechanism, which Iwill now describe.

I) is a vertically movable safety latch consisting of a plate cur.vedldngitudiually and secured to a longittulinally curved lug (7, extendingupward from the bottom plate a of l he frame A, by means of a screw dpassing" .through a slot (1 in the latch, the lower end of the latchrests upon rearward projections d of the triggers, and is held thereonand moved in one direction by means of a spring plate 1) engaging at oneend with an antifriction roller (Z journalell in an opening in the latchand secured at the other end to a slide plate D r The plate D is adaptedto slide upon the under surface-of the plate a in line with the plate CA stud ,(1 extends upward from the plate D through a slot (1" in the topplate a and is provided with athumb piece D The plate D has a hole (I init through which the upper end of the latch D extends.

The operation of the safety mechanism is as follows: When the plate (3is moved rearward as before described, it moves the plate lT rearwardand forces theutmaer end of the la-tchD against the under-surface of theplate u with the lower end upon the extensions (1- of the triggers asshown in Fig. :2. The plate C" may be now returned to its normalposition, leaving the safety latch at safety. While the safety latch isin this positionacartridge rannot be discharged because a trigger cannotbe operated to release a hammer. To set the latch in position sothateither one or both of the triggers may be operated the plate D ispushed forward Dymeaus of pressure on the thumb piece D This will leavea space in the slot (1 rearward of the lug (i coincident with the hole(F in the plate D and into which the upper end of the latch D may beforced when a trigger is pulled, as as shown in Fig, 1. Of course theforward movement of the plate D imparts a slight lo'ngitudinal movementto the latch and brings its upper end in line with the slot (1.

The manipulation of the parts to cook the ham mcrs as described alsoserves to release the barrels A so that they may be tilted in the usualmanner to extract or insert cartridges, as I will now describe. A lug Eextends downward from the barrels A and is provided in its front facewith a semi circular bearing notch e adapted to oscillate upon a bearingpin c ext-ended between the cheek pieces e of the extension Thisconstruction allows the barrels to be wholly removed from the stock in.the usual manner. A lug E extends downward from the barrels in the rearof the bearing lug E and the ex- -tcnsion A is provided with a verticalopening e into which this lug E projects when the barrels are locked. isa locking bolt movable in guide ways in the upper portion of theextension A and a link (connects the rear end of this belt with the dogC as shown. The bolt E is provided with an opening e through which thelug B may move. The lug E is provided with a notch e into which the endof the-bolt E may slide and the lug E is provided with a notch 6- intowhich the end wall a of the opening 6 may slide to lock the barrels inthe position shown in Fig. 1. The operation ofthehammercockingmechanisnnasheretofore described .draws the bolt 1* outof the notches e c so that the barrels may be tilted as, shown in Fig.2. A spring E secured at one end to the frame A and bearing at theotherend upon the end of the bolt E serves to push said bolt forward asthe dog 0 resumes its normal position.

I will now describe the cartridge extracting mechanism. F designates theextractor the outer end of which is of the usual construction adapted toengage the rim of a shell. A steady pin f is movable in a longitudinalhole f in the center piece of the barrels and a slide piece f is movablein an opening f in the lower part thereof. When the barrels are tiltedto extract a shell or shells, a rock lever F serves to push theextractor outward. This lever is pivoted between cheek pieces f of theremovable stock piece F and has its upper end projected through anoutward opening slot f into the openingf and impinging against the endof the slide piece f Thelower end of the lever F is cam shaped orrounded and bears or operates against the upper inclined surface ofablockf extended from one side of the bearing e. By this constructionwhen the barrels are tilted the cam end of the lever F bearingagaiustthe block f will rack said lever and cause it to push the extractoroutward. The extractor is pushed inward when the barrels are thrown downby contactin g with the wall a.

In breaking or tilting the barrels the sudden shock at; the end of themovement sometimes breaks the joint. To obviate this I employ afulcrumed stop G. This stop is fulcrumed between its ends to the lug Eas shown and has its upper end projected into a slot g in the slidepiece f. The lowerend is provided with a hook g to engage the forwardend wall of the slot e" in the bolt E \Vhcn the barrels are tilted oneend wall of the slot g will engage the stop and rock it on its pivot sothat the hook y will engage the bolt E as shown in Fig. 2.

I have shown and described my improvement in connection with a doublebarrel fire arm, but I do not wish to be limited thereto, as, obviously,it can be used with a single barrel.

' Having described my invention what I claim, is:

- 1. The combination, with a hammer, and the operating spring, of thecooking dog, a

. sliding plate having rack teeth, a link connection between said plateand cooking dog,

a cooking lever and a gear operated by said leverand engaging the rackteeth of theplate, substantially as specified.

2. The combination, with the hammers, the

operating mechanism therefor, and the cockit ing mechanism, of safetymechanism consisting of the curved plate having a slot, the lug,

' the screw passing through the slot and securing the plate to the lug,and means whereby a the safety mechanism may be set by the operation ofcooking the hammers, substantially I as specified.

' 3. The combination with the frame having the forward extension, andthe barrels pivoted thereto, the locking bolt and the stop carried bythe barrel and constructed to engage with the locking bolt when thebarrels are in atilted position, substantially as specified.

4.. The combination with the frame having 'the forward projection, ofthe barrels pivoted thereto, the movable stock piece, the extractor andthe rock lever having a cam. shaped end to engage, a block on theforward proj cation and engaging at its upper end with the extractor,the locking bolt and the'stop pivoted to a lug on the barrels andmovable by the extractor to engage with the loclxingv bolt when thebarrels are tilted, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

' ISAIAH s. HEATLYQ Witnesses:

S. O. EDMONDS, WILLIAM A. POLLOCK.

